ORG Air France-KLM Title BIO For the past 4 years Leon worked at the IT Operations department of Air France-KLM as Business and Information Architect. Before this, he worked for 7 years as Sr. Researcher at University of Amsterdam in the area of multi-domain authorization mechanisms for Grids and Optical Networks. Funded by European and National research projects Phosphorus and GigaPort, Leon collaborated for several years with Internet2's ION initiative. Leon initiated together with John Vollbrecht the work on the trust framework for multi-domain authorization supporting GLIF and NSI and other multi-domain applications.